Search a number
-
+
8061810801 = 311713440807
BaseRepresentation
bin1111000001000010…
…10111100001110001
3202210211201102101020
413200201113201301
5113002310421201
63411544330053
7403531155402
oct74041274161
922724642336
108061810801
113467755860
12168ba73929
139b62a5365
145669979a9
15322b59a36
hex1e0857871

8061810801 has 16 divisors (see below), whose sum is σ = 11891432448. Its totient is φ = 4817128400.

The previous prime is 8061810797. The next prime is 8061810817. The reversal of 8061810801 is 1080181608.

8061810801 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8061810801 - 22 = 8061810797 is a prime.

It is a super-2 number, since 2×80618108012 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (8061810851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1718061 + ... + 1722746.

It is an arithmetic number, because the mean of its divisors is an integer number (743214528).

Almost surely, 28061810801 is an apocalyptic number.

It is an amenable number.

8061810801 is a deficient number, since it is larger than the sum of its proper divisors (3829621647).

8061810801 is a wasteful number, since it uses less digits than its factorization.

8061810801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3440892.

The product of its (nonzero) digits is 3072, while the sum is 33.

The square root of 8061810801 is about 89787.5871209378. The cubic root of 8061810801 is about 2005.1376908486.

It can be divided in two parts, 80618 and 10801, that added together give a palindrome (91419).

The spelling of 8061810801 in words is "eight billion, sixty-one million, eight hundred ten thousand, eight hundred one".

Divisors: 1 3 11 33 71 213 781 2343 3440807 10322421 37848877 113546631 244297297 732891891 2687270267 8061810801